JP3089927U - Screws and screwdrivers - Google Patents
Screws and screwdriversInfo
- Publication number
- JP3089927U JP3089927U JP2002002746U JP2002002746U JP3089927U JP 3089927 U JP3089927 U JP 3089927U JP 2002002746 U JP2002002746 U JP 2002002746U JP 2002002746 U JP2002002746 U JP 2002002746U JP 3089927 U JP3089927 U JP 3089927U
- Authority
- JP
- Japan
- Prior art keywords
- screw
- screwdriver
- tip
- corner
- fitting groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
(57)【要約】
【課題】ねじ回し工具の先端部の各角部が磨耗せず、ね
じ回し工具が空回りしないような、ねじ回し工具の先端
部の嵌合凹溝を頭部の先端面に形成したねじ、およびこ
のねじ回し工具を提供することを課題とするものであ
る。
【解決手段】ねじ１の頭部１ｆの先端面１ａに、ねじ回
し工具２の多角形の先端部２ａが嵌合する多角形の嵌合
凹溝１ｂを形成するとともに、前記嵌合凹溝１ｂの各隅
部１ｃに放射方向の凹溝１ｅを形成したねじ。また、ね
じ回し工具２′の多角形の先端部２ａ′の各角部２ｂ′
に、ねじの頭部１ｆの先端面１ａに形成した嵌合凹溝１
ｂの各隅部１ｃに放射方向に形成した凹溝１ｅに嵌合す
る放射方向の凸部２ｄを形成したねじ回し工具。
(57) [Problem] To provide a fitting groove at the tip of a screwdriver so that each corner of the tip of the screwdriver does not wear and the screwdriver does not run idle. It is an object of the present invention to provide a screw formed in the above, and this screwdriver tool. A polygonal fitting groove (1b) into which a polygonal tip part (2a) of a screwdriver tool (2) is fitted is formed in a tip surface (1a) of a head (1f) of a screw (1), and the fitting groove (1b) is formed. Screws having a radial groove 1e formed at each corner 1c of the screw. Also, each corner 2b 'of the polygonal tip 2a' of the screwdriver 2 '
A fitting groove 1 formed on the tip surface 1a of the screw head 1f.
b. A screwdriver having a radial projection 2d fitted in a radial groove 1e at each corner 1c.
Description
【０００１】[0001]
本考案は、木ねじや小型のボルト（ビス）などのねじ、およびねじ回し工具の 改良に関するものであり、具体的にはねじの頭部に形成したねじ回し工具の先端 部が嵌合する嵌合凹溝、およびねじ回し工具の先端部を改良したものである。 The present invention relates to an improvement in a screw such as a wood screw or a small bolt (screw) and a screwdriver, and more specifically, in a fitting in which a tip of a screwdriver formed on a screw head is fitted. The groove and the tip of the screwdriver are improved.
【０００２】[0002]
図５は従来の木ねじ１０の斜視図であり、胴部にねじ部１０ａを形成し、頭部 １０ｂの先端面１０ｃに、ねじ回し工具の先端部が嵌合する正方形の嵌合凹溝１ ０ｄが形成されたものである。 FIG. 5 is a perspective view of a conventional wood screw 10, in which a screw portion 10a is formed in a body portion, and a square fitting groove 10d in which a tip portion of a screwdriver is fitted into a tip surface 10c of a head portion 10b. Is formed.
【０００３】 図６（ａ）は、前記ねじの頭部１０ｂに形成した嵌合凹溝１０ｄに、図６（ｂ ）に示すようなねじ回し工具（ドライバー）１１の正方形の先端部１１ａを嵌合 して、ねじを回す状態を示すものである。このねじを回すときには、ねじ回し工 具１１の各角部１１ｂが、矢印（白矢）で示すように、前記ねじの頭部１０ｂに 形成した嵌合凹溝１０ｄの各隅部１０ｅを押動して、ねじを矢印（黒矢）で示す ように回すことになる。[0003] FIG. 6A shows a square tip portion 11a of a screwdriver (driver) 11 as shown in FIG. 6B fitted in a fitting groove 10d formed in a head portion 10b of the screw. In addition, this shows the state in which the screw is turned. When turning this screw, each corner 11b of the screwdriver 11 pushes each corner 10e of the fitting groove 10d formed in the head 10b of the screw as shown by an arrow (white arrow). Then turn the screw as shown by the arrow (black arrow).
【０００４】[0004]
前記のような従来の木ねじ１０をねじ回し工具１１で回しているうちに、図７ （ａ），（ｂ）に示すように、ねじ回し工具１１の各角部１１ｂが磨耗して角が 丸くなり、最悪の場合には、ねじ回し工具１１が空回りする、といった問題が生 じる。 本考案は、このような従来の問題を無くしたねじ、およびねじ回し工具を提供 することを目的としたものである。 As shown in FIGS. 7A and 7B, while the conventional wood screw 10 as described above is being turned by the screwdriver 11, each corner 11b of the screwdriver 11 is worn and the corner becomes round. In the worst case, there is a problem that the screwdriver 11 runs idle. An object of the present invention is to provide a screw and a screwdriver that eliminate such conventional problems.
【０００５】[0005]
前記目的を達成するために、請求項１に係る考案は、ねじ１の頭部の先端面１ ａに、ねじ回し工具２の多角形の先端部２ａが嵌合する多角形の嵌合凹溝１ｂを 形成するとともに、前記嵌合凹溝１ｂの各隅部１ｃに放射方向の凹溝１ｅを形成 したことを特徴とするねじとしたものである。 In order to achieve the above object, the invention according to claim 1 is a polygonal fitting groove in which the polygonal tip 2a of the screwdriver tool 2 is fitted to the tip end surface 1a of the head of the screw 1. 1b, and a radial groove 1e is formed at each corner 1c of the fitting groove 1b.
【０００６】 また、請求項２に係る考案は、ねじ回し工具２′の多角形の先端部２ａ′の各 角部２ｂ′に、ねじの頭部の先端面１ａに形成した嵌合凹溝１ｂの各隅部１ｃに 放射方向に形成した凹溝１ｅに嵌合する放射方向の凸部２ｄを形成したことを特 徴とするねじ回し工具としたものである。The invention according to claim 2 is based on the idea that a fitting groove 1b formed in the tip end surface 1a of the screw head is provided at each corner 2b 'of the polygonal tip 2a' of the screwdriver 2 '. A screwdriver is characterized in that a radial projection 2d that fits into the radial groove 1e is formed at each corner 1c.
【０００７】 本考案の請求項１に係るようなねじ１としたことにより、ねじ回し工具２の先 端部２ａをねじ１の頭部の先端面１ａに形成した嵌合凹溝１ｂに嵌合して、ねじ １を回すときに、ねじ回し工具２の各角部２ｂが、ねじ１の頭部の先端面１ａに 形成した嵌合凹溝１ｂの隅部１ｃに当接しないで、ねじ回し工具２の各角部２ｂ 間の面２ｃが、前記嵌合凹溝１ｂの隅部１ｃ間の各壁面１ｄに密接嵌合して、ね じ回し工具２の回転力がねじ１の前記各壁面１ｄに伝動されるので、長期間にわ たってねじ回し工具２の各角部２ｂが磨耗して丸くなるようなことが無い。With the screw 1 according to the first aspect of the present invention, the leading end 2 a of the screwdriver 2 is fitted into the fitting groove 1 b formed on the distal end surface 1 a of the head of the screw 1. Then, when turning the screw 1, each corner 2 b of the screw driver 2 does not come into contact with the corner 1 c of the fitting groove 1 b formed on the tip end surface 1 a of the head of the screw 1, The surfaces 2c between the corners 2b of the tool 2 are closely fitted to the walls 1d between the corners 1c of the fitting groove 1b. Since the power is transmitted to 1d, each corner 2b of the screwdriver tool 2 does not become worn and round for a long time.
【０００８】 本考案の請求項２に係るようなねじ回し工具２′としたことにより、ねじ回し 工具２′の多角形の先端部２ａ′の各角部２ｂ′間の面２ｃ′が、ねじの頭部の 先端面１ａに形成した嵌合凹溝１ｂの各隅部１ｃ間の壁面１ｄに密接嵌合し、ま た、ねじ回し工具２′の多角形の先端部２ａ′の各角部２ｂ′に形成した放射方 向の凸部２ｄが、ねじの頭部の先端面１ａに形成した嵌合凹溝１ｂの各隅部１ｃ に放射方向に形成した凹溝１ｅに密接嵌合するので、ねじ回し工具２′の回転力 が、前記ねじの頭部の先端面１ａの嵌合凹溝１ｂの各隅部１ｃ間の壁面１ｄおよ び前記嵌合凹溝１ｂの各隅部１ｃに放射方向に形成した凹溝１ｅに伝動して、ね じ回し工具が空回りすることは全く無くなり、確実にねじを回すことができる。With the screwdriver 2 ′ according to the second aspect of the present invention, the surface 2 c ′ between the corners 2 b ′ of the polygonal tip 2 a ′ of the screwdriver 2 ′ is screwed. It fits tightly on the wall surface 1d between the corners 1c of the fitting groove 1b formed on the distal end surface 1a of the head, and each corner of the polygonal distal end 2a 'of the screwdriver 2'. The radial projection 2d formed at 2b 'fits closely with the groove 1e radially formed at each corner 1c of the fitting groove 1b formed at the tip end surface 1a of the screw head. The rotational force of the screwdriver 2 ′ is applied to the wall 1 d between the corners 1 c of the fitting groove 1 b on the tip end surface 1 a of the screw head and to each corner 1 c of the fitting groove 1 b. The screw driving tool does not run idle by transmitting to the radially formed concave groove 1e, and the screw can be surely turned.
【０００９】[0009]
以下、本考案のねじ、およびねじ回し工具（ドライバー）の実施の形態につい て図面を参照して詳細に説明する。図１は本考案の請求項１に係るねじの斜視図 で、図２（ａ）は本考案のねじ頭部の先端面の嵌合凹溝に、図２（ｂ）に示すよ うな通常のねじ回し工具の先端部を嵌合した状態のねじ頭部の平面図である。 Hereinafter, embodiments of a screw and a screwdriver (driver) according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a screw according to claim 1 of the present invention. FIG. 2 (a) shows a fitting groove in the tip end surface of the screw head of the present invention, and a normal groove as shown in FIG. 2 (b). It is a top view of the screw head in the state where the tip part of the screw driver was fitted.
【００１０】 本考案の請求項１に係るねじ１は、ねじ１の頭部１ｆの先端面１ａに、ねじ回 し工具２の多角形すなわちこの実施の形態においては、ほぼ正方形の先端部２ａ が嵌合する、多角形すなわちこの実施の形態においては、ほぼ正方形の嵌合凹溝 １ｂを形成するとともに、前記嵌合凹溝１ｂの各隅部１ｃに放射方向の凹溝１ｅ を形成したねじとしたものである。In the screw 1 according to the first aspect of the present invention, the polygonal shape of the screwdriver 2, that is, in this embodiment, a substantially square tip 2 a is provided on the tip end surface 1 a of the head 1 f of the screw 1. In this embodiment, a screw which forms a fitting groove 1b having a polygonal shape, that is, a substantially square fitting groove, and a radial groove 1e formed at each corner 1c of the fitting groove 1b. It was done.
【００１１】 前記ねじの頭部１ｆの先端面１ａに形成する嵌合凹溝１ｂは、正方形に限らず 、三角形、五角形、または六角形にしてもよく、また、このようなねじを回すね じ回し工具の先端部２ａも前記同様に三角形、五角形、または六角形にしてもよ い。The fitting groove 1b formed on the tip end surface 1a of the head 1f of the screw is not limited to a square, but may be a triangle, a pentagon, or a hexagon. The tip 2a of the turning tool may be triangular, pentagonal, or hexagonal as described above.
【００１２】 本考案の請求項１に係るようなねじ１としたことにより、ねじ回し工具２の先 端部２ａをねじ１の頭部の先端面１ａに形成した嵌合凹溝１ｂに嵌合して、ねじ １を回すときに、ねじ回し工具２の各角部２ｂが、ねじ１の頭部の先端面１ａに 形成した嵌合凹溝１ｂの隅部１ｃに当接しないで、ねじ回し工具２の各角部２ｂ 間の面２ｃが、前記嵌合凹溝１ｂの隅部１ｃ間の各壁面１ｄに密接嵌合して、ね じ回し工具２の回転力がねじ１の前記各壁面１ｄに伝動されるので、長期間にわ たってねじ回し工具２の各角部２ｂが磨耗して丸くなるようなことが無い。With the screw 1 according to the first aspect of the present invention, the leading end 2a of the screwdriver 2 is fitted into the fitting groove 1b formed on the leading end surface 1a of the head of the screw 1. Then, when turning the screw 1, each corner 2 b of the screw driver 2 does not come into contact with the corner 1 c of the fitting groove 1 b formed on the tip end surface 1 a of the head of the screw 1, The surfaces 2c between the corners 2b of the tool 2 are closely fitted to the walls 1d between the corners 1c of the fitting groove 1b. Since the power is transmitted to 1d, each corner 2b of the screwdriver tool 2 does not become worn and round for a long time.
【００１３】 本考案の請求項２に係るねじ回し工具２′は、その多角形の先端部２ａ′の各 角部２ｂ′に、ねじの頭部の先端面１ａに形成した嵌合凹溝１ｂの各隅部１ｃに 放射方向に形成した凹溝１ｅに嵌合する放射方向の凸部２ｄを形成したものであ る。[0013] A screwdriver 2 'according to a second aspect of the present invention has a fitting groove 1b formed on the tip end surface 1a of the screw head at each corner 2b' of the polygonal tip 2a '. In each of the corners 1c, there is formed a radial projection 2d that fits into the radial groove 1e.
【００１４】 このようなねじ回し工具２′としたことにより、ねじ回し工具２′の多角形の 先端部２ａ′の各角部２ｂ′間の面２ｃ′が、ねじの頭部の先端面１ａに形成し た嵌合凹溝１ｂの各隅部１ｃ間の壁面１ｄに密接嵌合し、また、ねじ回し工具２ ′の多角形の先端部２ａ′の各角部２ｂ′に形成した放射方向の凸部２ｄが、ね じの頭部の先端面１ａに形成した嵌合凹溝１ｂの各隅部１ｃに放射方向に形成し た凹溝１ｅに密接嵌合するので、ねじ回し工具２′の回転力が、前記ねじの頭部 の先端面１ａの嵌合凹溝１ｂの各隅部１ｃ間の壁面１ｄおよび前記嵌合凹溝１ｂ の各隅部１ｃに放射方向に形成した凹溝１ｅに伝動して、ねじ回し工具が空回り することは全く無くなり、確実にねじを回すことができる。With such a screwdriver 2 ′, the surface 2 c ′ between the corners 2 b ′ of the polygonal tip 2 a ′ of the screwdriver 2 ′ becomes the tip 1 a of the screw head. The radial direction formed at each corner 2b 'of the polygonal tip 2a' of the screwdriver 2 'is tightly fitted to the wall 1d between the corners 1c of the fitting groove 1b formed at the bottom. Of the fitting concave groove 1b formed on the tip end surface 1a of the screw head is closely fitted to the concave groove 1e radially formed in each corner 1c of the screw head. The rotational force of the groove 1e is formed radially on the wall surface 1d between the corners 1c of the fitting groove 1b on the tip end surface 1a of the screw head and on the corner 1c of the fitting groove 1b. And the screwdriver never runs idle, and the screw can be turned reliably.
【００１５】 図４は本考案の請求項１に係るねじの製造を説明するものであり、先ず、図４ （ａ）に示す工程においては、ねじ製造機械の固定部（図示しない）に取り付け たソケットパンチ３の端面に形成した丸凹溝３ａに、ねじ製造機械の可動保持部 ４に保持した鉄棒状のねじ材料１′の先端を、図４（ｂ）に示す工程のように押 圧すると、図４（ｃ）に示すように、ねじ材料１′の先端に頭部１ｆが形成され る。FIG. 4 illustrates the manufacture of the screw according to claim 1 of the present invention. First, in the step shown in FIG. 4A, the screw was attached to a fixing portion (not shown) of the screw manufacturing machine. When the tip of the iron rod-shaped screw material 1 ′ held in the movable holding portion 4 of the screw making machine is pressed into the circular concave groove 3 a formed in the end face of the socket punch 3 as shown in the step shown in FIG. As shown in FIG. 4 (c), a head 1f is formed at the tip of the screw material 1 '.
【００１６】 次に、図４（ｄ）に示すように、頭部１ｆが形成されたねじ材料１′をねじ製 造機械の可動保持部４′に保持し、ねじ製造機械の固定部に取り付けたソケット パンチ３′の端面に形成した、図３（ｂ）に示すねじ回し工具２′の先端部２ａ ′と同様の凸部３ｂに、前記ねじ部材１′の頭部１ｆを、図４（ｅ）に示すよう に押圧すると、図４（ｆ）に示すように、ねじ材料１′の頭部１ｆの先端面１ａ に、図１に示すものと同様のねじ回し工具の先端部が嵌合する嵌合凹溝１ｂが形 成される。最後に図４（ｆ）に示すようなねじ材料１′の胴部に、図示しない工 程によって、ねじ部を形成して、図１に示すようなねじ１が製造される。Next, as shown in FIG. 4 (d), the screw material 1 ′ having the head 1 f is held on the movable holding portion 4 ′ of the screw making machine and attached to the fixed portion of the screw making machine. The head 1f of the screw member 1 'is inserted into a projection 3b formed on the end face of the socket punch 3', which is similar to the tip 2a 'of the screwdriver 2' shown in FIG. When pressed as shown in FIG. 4E, as shown in FIG. 4F, the tip of a screwdriver similar to that shown in FIG. 1 is fitted to the tip 1a of the head 1f of the screw material 1 '. The corresponding fitting groove 1b is formed. Finally, a screw portion is formed on the body of the screw material 1 'as shown in FIG. 4 (f) by a process (not shown) to manufacture the screw 1 as shown in FIG.
【００１７】[0017]
本考案の請求項１に係るねじは、前記のように形成したので、ねじ回し工具の 先端部を、ねじの先端面に形成した嵌合凹溝に嵌合して、ねじを回すときに、ね じ回し工具の各角部が、ねじの先端面に形成した嵌合凹溝の各隅部に当接しない で、ねじ回し工具の各角部間の面が、前記嵌合凹溝の隅部間の壁面に密接嵌合し て押動し、ねじを回すので、長期間にわたってねじ回し工具の各角部が磨耗して 丸くなり、ねじ回し工具が空回りするようなことが無くなる。 Since the screw according to claim 1 of the present invention is formed as described above, when the tip of the screwdriver is fitted into the fitting groove formed on the tip surface of the screw and the screw is turned, Each corner of the screwdriver does not come into contact with each corner of the fitting groove formed on the tip surface of the screw. Since the screw is turned while being closely fitted to the wall between the parts, the corners of the screwdriver are worn and rounded over a long period of time, so that the screwdriver does not run idle.
【００１８】 本考案の請求項２に係るねじ回し工具は、前記のように形成したので、ねじ回 し工具の多角形の先端部の各角部間の面が、ねじの頭部の先端面に形成した嵌合 凹溝の各隅部間の壁面に密接嵌合し、また、ねじ回し工具の多角形の先端部の各 角部に形成した放射方向の凸部が、ねじの先端面に形成した嵌合凹溝の各隅部に 放射方向に形成した凹溝に密接嵌合するので、ねじ回し工具の回転力が、前記ね じの先端面の嵌合凹溝の各壁面およびねじの先端面の嵌合凹溝の各隅部に放射方 向に形成した各凹溝に伝動して、ねじ回し工具が空回りすることが全く無く、確 実にねじを回すことができる。Since the screwdriver according to claim 2 of the present invention is formed as described above, the surface between the respective corners of the polygonal tip of the screwdriver is the tip surface of the head of the screw. Closely fitted to the wall between the corners of the concave groove, and the radial projections formed at each corner of the polygonal tip of the screwdriver tool Since the grooves formed in the radial direction are closely fitted to the respective corners of the formed fitting grooves, the rotational force of the screwdriver increases the rotational force of the fitting grooves on the tip end surface of the screw and the screw. Power is transmitted to each groove formed radially at each corner of the fitting groove on the tip end surface, so that the screwdriver can be turned reliably without any turning of the screwdriver tool.
【図１】本考案の請求項１に係るねじの斜視図である。FIG. 1 is a perspective view of a screw according to claim 1 of the present invention.
【図２】（ａ）図は本考案に係るねじの頭部の先端面に
形成した嵌合凹溝に通常のねじ回し工具の先端部を嵌合
させた状態を示し、（ｂ）図は通常のねじ回し工具の先
端部を示す斜視図である。FIG. 2A shows a state in which the tip of a normal screwdriver is fitted into a fitting groove formed on the tip of the head of the screw according to the present invention, and FIG. It is a perspective view which shows the front-end | tip part of the normal screw driver.
【図３】（ａ）図は請求項１に係るねじの先端面に形成
した嵌合凹溝に請求項２に係るねじ回し工具の先端部を
嵌合させた状態を示し、（ｂ）図は請求項２に係るねじ
回し工具の先端部を示す斜視図である。FIG. 3 (a) shows a state in which the tip of the screwdriver according to claim 2 is fitted into a fitting groove formed on the tip surface of the screw according to claim 1, and FIG. FIG. 4 is a perspective view showing a tip portion of the screwdriver according to claim 2.
【図４】本考案のねじの各製造工程を示す図である。FIG. 4 is a view showing each manufacturing process of the screw of the present invention.
【図５】従来のねじの斜視図である。FIG. 5 is a perspective view of a conventional screw.
【図６】（ａ）図は従来のねじの頭部の先端面に形成し
た嵌合凹溝に通常のねじ回し工具の先端部を嵌合させた
状態を示し、（ｂ）図は通常のねじ回し工具の先端部を
示す斜視図である。FIG. 6 (a) shows a state in which the tip of a normal screwdriver is fitted into a fitting groove formed on the tip surface of the head of a conventional screw, and FIG. It is a perspective view which shows the front-end | tip part of a screwdriver tool.
【図７】従来のねじの欠点を説明する図であり、（ａ）
図は従来のねじの頭部の先端面に形成した嵌合凹溝に通
常のねじ回し工具の先端部を嵌合させた状態を示し、
（ｂ）図は通常のねじ回し工具の先端部を示す斜視図で
ある。7A and 7B are diagrams for explaining the drawbacks of the conventional screw, and FIG.
The figure shows the state where the tip of a normal screwdriver has been fitted into the fitting groove formed on the tip face of the head of the conventional screw,
(B) is a perspective view showing a tip portion of a normal screwdriver.
１ ねじ １′ ねじ材料 １ａ 先端面 １ｂ 嵌合凹溝 １ｃ 隅部 １ｄ 壁面 １ｅ 凹溝 １ｆ 頭部 ２ ねじ回し工具 ２′ ねじ回し工具 ２ａ 先端部 ２ａ′ 先端部 ２ｂ 角部 ２ｂ′ 角部 ２ｃ 面 ２ｃ′ 面 ２ｄ 凸部 ３ ソケットパンチ ３′ ソケットパンチ ３ａ 丸凹溝 ３ｂ 凸部 ４ 可動保持部 ４′ 可動保持部 １０ 木ねじ １０ａ ねじ部 １０ｂ 頭部 １０ｃ 先端面 １０ｄ 嵌合凹溝 １０ｅ 隅部 １１ ねじ回し工具 １１ａ 先端部 １１ｂ 角部 Reference Signs List 1 screw 1 'screw material 1a tip surface 1b fitting concave groove 1c corner 1d wall surface 1e concave groove 1f head 2 screw driver 2' screw driver 2a tip 2a 'tip 2b corner 2b' corner 2c face 2c 'surface 2d convex part 3 socket punch 3' socket punch 3a round concave groove 3b convex part 4 movable holding part 4 'movable holding part 10 wood screw 10a screw part 10b head 10c tip end face 10d fitting concave groove 10e corner part 11 screw Turning tool 11a Tip 11b Corner
Claims (2)
じ回し工具（２）の多角形の先端部（２ａ）が嵌合する
多角形の嵌合凹溝（１ｂ）を形成するとともに、前記嵌
合凹溝（１ｂ）の各隅部（１ｃ）に放射方向の凹溝（１
ｅ）を形成したことを特徴とするねじ。A polygonal fitting groove (1b) into which a polygonal tip (2a) of a screwdriver (2) fits is formed on a tip end surface (1a) of a head of a screw (1). And a radial groove (1c) at each corner (1c) of the fitting groove (1b).
A screw characterized by forming e).
（２ａ′）の各角部（２ｂ′）に、ねじの頭部の先端面
（１ａ）に形成した嵌合凹溝（１ｂ）の各隅部（１ｃ）
に放射方向に形成した凹溝（１ｅ）に嵌合する放射方向
の凸部（２ｄ）を形成したことを特徴とするねじ回し工
具。2. A fitting groove (2) formed on a tip surface (1a) of a screw head at each corner (2b ') of a polygonal tip (2a') of a screwdriver (2 '). Each corner (1c) of 1b)
A screwdriver, characterized in that a radial projection (2d) fitted into the radial groove (1e) is formed on the screwdriver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002002746U JP3089927U (en) | 2002-05-14 | 2002-05-14 | Screws and screwdrivers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002002746U JP3089927U (en) | 2002-05-14 | 2002-05-14 | Screws and screwdrivers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP3089927U true JP3089927U (en) | 2002-11-22 |
Family
ID=43241171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2002002746U Expired - Fee Related JP3089927U (en) | 2002-05-14 | 2002-05-14 | Screws and screwdrivers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3089927U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014156898A (en) * | 2013-02-15 | 2014-08-28 | Miyagawa:Kk | Screw with drive hole and header punch for manufacturing screw with drive hole |
-
2002
- 2002-05-14 JP JP2002002746U patent/JP3089927U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014156898A (en) * | 2013-02-15 | 2014-08-28 | Miyagawa:Kk | Screw with drive hole and header punch for manufacturing screw with drive hole |
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